The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic ...

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 ...

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

Mars Ingenuity helicopter's 59th flight was captured by the Perseverance rover's Left Mast-cam camera. Credit: Credit: ...

Using syrup and baking soda, research has demonstrated the formation mechanism of rootless cones, small volcanic landforms commonly found on Earth and Mars. The study clarified, through an ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' dust storms, a new study suggests.

Thousands of mysterious clay mounds found on Mars were formed by ancient water on the Red Planet's barren northern plains, ...

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

Research suggests that an ancient shoreline helped to sculpt the drop between Mars' southern and northern hemispheres.

The red planet's hot again, cold again history: Explaining persistent hydrogen in Mars' atmosphere by Anne J. Manning, Harvard John A. Paulson School of Engineering and Applied Sciences ...